Abstract

Comparison of mineral nutrients composition in petioles of Perlette (a prolific bearer) and Thompson Seedless (a shy bearer) vines revealed that the former accumulated more nitrogen and less phosphorus besides differing in their capacity for absorbing micro nutrient elements like zinc and copper. Peak content of nitrogen occurred after harvest in both the cultivars particularly Thompson Seedless resulting in excessive vegetative growth causing damage to vines. Phosphorus showed a peak in August for Thompson Seedless and September for Perlette. Potassium showed peaks in April and September in Thompson Seedless, and April, August and November in Perlette. The pattern of iron, zinc, manganese and copper accumulation differed in vines growing in monsoon region and those growing in temperate and sub-temperate region.